Abstract
Expansion and economical importance of yield reduction due to iron deficiency chlorosis in the world has attracted many researchers attention. Different materials, such as iron sulfate, acidified remediation, wastes, by-products of industries, iron chelate and organic compounds, have been tested to correct iron chlorosis. This experiment studied effect of applying an iron fertilizer for corn (SC 704) consisting sulfur and Thiobacillus bacteria. Experiment was carried out in greenhouse in factorial with complete of randomized design in four replications. The first factor was two kinds of irrigation water, w1= irrigation with ordinary water of soil and water research station of Karaj and w2= irrigation with acidified water of station with pH of 5-5.2 (acidified with sulfuric acid). The second factor was seven iron fertilizer treatments, T1=Control (without iron fertilizer); T2= Iron sequestrine 138 (10 mg. kg -1 ), T3= Iron sulfate (110 mg.kg -1 ), T4= Iron oxide powder of iron ore (220 mg.kg -1 ), T5= T4 + sulfur (250 mg.kg -1 powdered sulfur) + Thiobacillus inoculant (10 4 cell.gr soil -1 ), T6= T5 + organic matter, T7= T3 + organic matter. Nitrogen, potassium, triple superphosphate, Mn, Zn, Cu sulfates and acid boric was used 200, 85, 90, 10, 5, 10 and 5 mg. kg -1 , respectively. In the end of experiment, Dry shoot and root weight, iron uptake, chlorophyll Index (SPAD 502) and Fv/Fm were measured. Based on results, acidified irrigation water had significant effect on shoot dry weight and P and Fe uptake at five percent probability level, but had no significant effect on chlorophyll index. Effects of different fertilizer treatments on dry weight, P and Fe uptake and chlorophyll index, against Fv/Fm, were significant on five percent level. T6 and T7 produced highest shoot dry weight and T2 produced the lowest. The highest amount of P and Fe uptake was belonging to T7 and the lowest was belonging to T2. The highest amount of chlorophyll index was belonging to T6. Between treatments there was no significant difference on Fv/Fm factor.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 10
Claim · model-written summary
Acidified irrigation water significantly affected shoot dry weight and P and Fe uptake of corn at the five percent level.
- Taxon
- corn
Zea mays subsp. mayse0 - Treatment
- irrigation with acidified watere2
- Outcome
- shoot dry weight and P and Fe uptakee1
- Qualifier
- at five percent probability levele1
- Comparator
- irrigation with ordinary watere2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applying an iron fertilizer for corn (SC 704)”
e1“Based on results, acidified irrigation water had significant effect on shoot dry weight and P and Fe uptake at five percent probability level, but had no significant effect on chlorophyll index”
e2“The first factor was two kinds of irrigation water, w1= irrigation with ordinary water of soil and water research station of Karaj and w2= irrigation with acidified water of station with pH of 5-5.2 (acidified with sulfuric acid)”
Claim · model-written summary
Acidified irrigation water had no significant effect on chlorophyll index of corn.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- irrigation with acidified watere2
- Outcome
- chlorophyll indexe1
- Direction
- no significant effecte1
- Comparator
- irrigation with ordinary watere2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applying an iron fertilizer for corn (SC 704)”
e1“Based on results, acidified irrigation water had significant effect on shoot dry weight and P and Fe uptake at five percent probability level, but had no significant effect on chlorophyll index”
e2“The first factor was two kinds of irrigation water, w1= irrigation with ordinary water of soil and water research station of Karaj and w2= irrigation with acidified water of station with pH of 5-5.2 (acidified with sulfuric acid)”
Claim · model-written summary
Iron fertilizer treatments significantly affected dry weight and P and Fe uptake of corn at the five percent level.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- iron fertilizer treatmentse3
- Outcome
- dry weight, P and Fe uptakee4
- Qualifier
- on five percent levele4
- Comparator
- Control (without iron fertilizer)e3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applying an iron fertilizer for corn (SC 704)”
e3“The second factor was seven iron fertilizer treatments, T1=Control (without iron fertilizer)”
e4“Effects of different fertilizer treatments on dry weight, P and Fe uptake and chlorophyll index, against Fv/Fm, were significant on five percent level”
Claim · model-written summary
Iron fertilizer treatments significantly affected chlorophyll index of corn at the five percent level.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- iron fertilizer treatmentse3
- Outcome
- chlorophyll indexe4
- Qualifier
- on five percent levele4
- Comparator
- Control (without iron fertilizer)e3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applying an iron fertilizer for corn (SC 704)”
e3“The second factor was seven iron fertilizer treatments, T1=Control (without iron fertilizer)”
e4“Effects of different fertilizer treatments on dry weight, P and Fe uptake and chlorophyll index, against Fv/Fm, were significant on five percent level”
Claim · model-written summary
Iron fertilizer treatments did not differ significantly in Fv/Fm of corn.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- iron fertilizer treatmentse3
- Outcome
- Fv/Fm factore5
- Direction
- no significant differencee5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applying an iron fertilizer for corn (SC 704)”
e3“The second factor was seven iron fertilizer treatments, T1=Control (without iron fertilizer)”
e5“Between treatments there was no significant difference on Fv/Fm factor”
Claim · model-written summary
T6 and T7 produced the highest shoot dry weight of corn.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- T6 and T7e6
- Outcome
- shoot dry weighte6
- Direction
- higheste6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applying an iron fertilizer for corn (SC 704)”
e6“T6 and T7 produced highest shoot dry weight and T2 produced the lowest”
Claim · model-written summary
T2 produced the lowest shoot dry weight of corn.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- T2e6
- Outcome
- shoot dry weighte6
- Direction
- loweste6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applying an iron fertilizer for corn (SC 704)”
e6“T6 and T7 produced highest shoot dry weight and T2 produced the lowest”
Claim · model-written summary
T7 gave the highest P and Fe uptake of corn.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- T7e7
- Outcome
- P and Fe uptakee7
- Direction
- highest amounte7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applying an iron fertilizer for corn (SC 704)”
e7“The highest amount of P and Fe uptake was belonging to T7 and the lowest was belonging to T2”
Claim · model-written summary
T2 gave the lowest P and Fe uptake of corn.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- T2e7
- Outcome
- P and Fe uptakee7
- Direction
- loweste7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applying an iron fertilizer for corn (SC 704)”
e7“The highest amount of P and Fe uptake was belonging to T7 and the lowest was belonging to T2”
Claim · model-written summary
T6 gave the highest chlorophyll index of corn.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- T6e7
- Outcome
- chlorophyll indexe7
- Direction
- highest amounte7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applying an iron fertilizer for corn (SC 704)”
e7“The highest amount of chlorophyll index was belonging to T6”
The same questions in other papers
iron atom · physiology: photosynthesis · Zea mays (maize)Positive and negative results
9 in the opposite direction
- positive
- positive
- positive
6 papers more in this group
See all 10 papers →fertilization · physiology: photosynthesis · Zea mays (maize)Results differ
11 papers in the same direction as this paper · 92 in the opposite direction
- positive
- positive
- positive
100 papers more in this group
See all 104 papers →irrigation · physiology: pigments · Zea mays (maize)Positive and negative results
14 papers in the same direction as this paper · 28 in the opposite direction
- positive
- positive
- positive
39 papers more in this group
See all 43 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.